Warning: Permanently added '10.128.1.101' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 54.740143][ T8375] loop0: detected capacity change from 0 to 4 [ 54.750925][ T8375] VFS: Found a V7 FS (block size = 512) on device loop0 [ 54.760806][ T8375] ------------[ cut here ]------------ [ 54.766391][ T8375] WARNING: CPU: 0 PID: 8375 at fs/inode.c:362 inc_nlink+0x144/0x160 [ 54.775143][ T8375] Modules linked in: [ 54.779057][ T8375] CPU: 0 PID: 8375 Comm: syz-executor996 Not tainted 5.12.0-rc5-syzkaller #0 [ 54.788559][ T8375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.799134][ T8375] RIP: 0010:inc_nlink+0x144/0x160 [ 54.804567][ T8375] Code: ff 4c 89 e7 e8 9d 1b ee ff e9 42 ff ff ff 4c 89 e7 e8 20 1b ee ff e9 fc fe ff ff 4c 89 e7 e8 13 1b ee ff eb d4 e8 cc 70 aa ff <0f> 0b e9 6e ff ff ff e8 10 1b ee ff e9 44 ff ff ff e8 06 1b ee ff [ 54.825786][ T8375] RSP: 0018:ffffc9000163fe08 EFLAGS: 00010293 [ 54.832708][ T8375] RAX: 0000000000000000 RBX: ffff88802f370038 RCX: 0000000000000000 [ 54.841602][ T8375] RDX: ffff888018f10000 RSI: ffffffff81c98084 RDI: 0000000000000003 [ 54.849632][ T8375] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 54.857614][ T8375] R10: ffffffff81c97ff0 R11: 0000000000000000 R12: ffff88802f370080 [ 54.865650][ T8375] R13: ffff88802db37be8 R14: ffffffff89952400 R15: 0000000000000000 [ 54.874295][ T8375] FS: 0000000000b6c300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 54.883287][ T8375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.889942][ T8375] CR2: 000055e0ca743820 CR3: 0000000029c9f000 CR4: 0000000000350ee0 [ 54.897903][ T8375] Call Trace: [ 54.901222][ T8375] sysv_mkdir+0x21/0x150 [ 54.905465][ T8375] vfs_mkdir+0x1ca/0x360 [ 54.909749][ T8375] do_mkdirat+0x284/0x310 [ 54.914078][ T8375] ? user_path_create+0xf0/0xf0 [ 54.918914][ T8375] ? syscall_enter_from_user_mode+0x27/0x70 [ 54.924864][ T8375] do_syscall_64+0x2d/0x70 [ 54.929333][ T8375] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 54.935290][ T8375] RIP: 0033:0x443c29 [ 54.939178][ T8375] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 54.959018][ T8375] RSP: 002b:00007ffcd88ce268 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 54.967596][ T8375] RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 0000000000443c29 [ 54.975757][ T8375] RDX: 00000000004021f3 RSI: 0000000000000023 RDI: 0000000020000080 [ 54.983787][ T8375] RBP: 00000000004034c0 R08: 0000000000000000 R09: 0000000000000000 [ 54.991836][ T8375] R10: 00007ffcd88ce130 R11: 0000000000000246 R12: 0000000000403550 [ 54.999890][ T8375] R13: 0000000000000000 R14: 00000000004b1018 R15: 00000000004004a0 [ 55.008449][ T8375] Kernel panic - not syncing: panic_on_warn set ... [ 55.015018][ T8375] CPU: 0 PID: 8375 Comm: syz-executor996 Not tainted 5.12.0-rc5-syzkaller #0 [ 55.024303][ T8375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.034337][ T8375] Call Trace: [ 55.037597][ T8375] dump_stack+0x141/0x1d7 [ 55.041912][ T8375] panic+0x306/0x73d [ 55.045804][ T8375] ? __warn_printk+0xf3/0xf3 [ 55.050381][ T8375] ? __warn.cold+0x1a/0x44 [ 55.054778][ T8375] ? inc_nlink+0x144/0x160 [ 55.059172][ T8375] __warn.cold+0x35/0x44 [ 55.063395][ T8375] ? inc_nlink+0x144/0x160 [ 55.067788][ T8375] report_bug+0x1bd/0x210 [ 55.072101][ T8375] handle_bug+0x3c/0x60 [ 55.076239][ T8375] exc_invalid_op+0x14/0x40 [ 55.080724][ T8375] asm_exc_invalid_op+0x12/0x20 [ 55.085729][ T8375] RIP: 0010:inc_nlink+0x144/0x160 [ 55.090732][ T8375] Code: ff 4c 89 e7 e8 9d 1b ee ff e9 42 ff ff ff 4c 89 e7 e8 20 1b ee ff e9 fc fe ff ff 4c 89 e7 e8 13 1b ee ff eb d4 e8 cc 70 aa ff <0f> 0b e9 6e ff ff ff e8 10 1b ee ff e9 44 ff ff ff e8 06 1b ee ff [ 55.110333][ T8375] RSP: 0018:ffffc9000163fe08 EFLAGS: 00010293 [ 55.116379][ T8375] RAX: 0000000000000000 RBX: ffff88802f370038 RCX: 0000000000000000 [ 55.124329][ T8375] RDX: ffff888018f10000 RSI: ffffffff81c98084 RDI: 0000000000000003 [ 55.132283][ T8375] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 55.140233][ T8375] R10: ffffffff81c97ff0 R11: 0000000000000000 R12: ffff88802f370080 [ 55.148185][ T8375] R13: ffff88802db37be8 R14: ffffffff89952400 R15: 0000000000000000 [ 55.156138][ T8375] ? inc_nlink+0xb0/0x160 [ 55.160449][ T8375] ? inc_nlink+0x144/0x160 [ 55.164846][ T8375] ? inc_nlink+0x144/0x160 [ 55.169245][ T8375] sysv_mkdir+0x21/0x150 [ 55.173473][ T8375] vfs_mkdir+0x1ca/0x360 [ 55.177699][ T8375] do_mkdirat+0x284/0x310 [ 55.182029][ T8375] ? user_path_create+0xf0/0xf0 [ 55.186862][ T8375] ? syscall_enter_from_user_mode+0x27/0x70 [ 55.193017][ T8375] do_syscall_64+0x2d/0x70 [ 55.197520][ T8375] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 55.203396][ T8375] RIP: 0033:0x443c29 [ 55.207271][ T8375] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 55.226857][ T8375] RSP: 002b:00007ffcd88ce268 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 55.235250][ T8375] RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 0000000000443c29 [ 55.243200][ T8375] RDX: 00000000004021f3 RSI: 0000000000000023 RDI: 0000000020000080 [ 55.251151][ T8375] RBP: 00000000004034c0 R08: 0000000000000000 R09: 0000000000000000 [ 55.259100][ T8375] R10: 00007ffcd88ce130 R11: 0000000000000246 R12: 0000000000403550 [ 55.267067][ T8375] R13: 0000000000000000 R14: 00000000004b1018 R15: 00000000004004a0 [ 55.279086][ T8375] Kernel Offset: disabled [ 55.283557][ T8375] Rebooting in 86400 seconds..